Q. $RNH_{2}\$reacts with $C_{6}H_{5}SO_{2}Cl$ in aqueous KOH to give a clear solution. On acidification a precipitate is obtained which is due to the formation of
A) [image:13_image175.emf]
B) $R - N^{-}SO_{2}C_{6}H_{5}K^{+}$
C) $C_{6}H_{5}SO_{2}NH_{2}$
D) $R - NH - SO_{2} - C_{6}H_{5}$
Explanation
(d)
$C_{6}H_{5}SO_{2}Cl\ \ \ + RNH_{2} \rightarrow RNHSO_{2}C_{6}H_{5}\overset{\ \ \ \ KOH\ \ \ }{\rightarrow}$ $R - NKSO_{2}C_{6}H_{5}$
Benzene sulphyonyl N-alkyl benzene soluble in KOH
chloride sulphonamide
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.